Apparatuses and methods for transmitting and receiving a data signal on a line pair having a first transmission line and a second transmission line are provided. In one embodiment, a data signal which represents the data to be transmitted by means of a sequence of first and second signal levels is applied to the first transmission line, and a reference signal which changes between a first and a second reference level only when a level change between the first and the second signal level is suppressed between two successive signal levels of the data signal on the first transmission line is applied to the second transmission line.